1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Free_Kalibri [48]
2 years ago
13

CAN SOMEONE HELP PLEASE!!!!

Chemistry
2 answers:
miv72 [106K]2 years ago
8 0

Answer: The Hubble

Explanation:

inysia [295]2 years ago
8 0
Your answer would be A
You might be interested in
Logan combines hydrogen chloride (hcl) and calcium hydroxide ca(oh)2. as a result, a reaction occurs and new substances are form
scoundrel [369]
B. Calcium chloride and water.
8 0
3 years ago
Read 2 more answers
For the generic equilibrium HA(aq) ⇌ H+(aq) + A−(aq), which of these statements is true? For the generic equilibrium , which of
timama [110]

<u>Answer:</u> The correct statement is if you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase.

<u>Explanation:</u>

Common ion effect is defined as the effect which occurs on equilibrium when a common ion (an ion which is already present in the solution) is added to a solution. This effect generally decreases the solubility of a solute.

Equilibrium reaction of HA and KA follows the equation:

HA\rightleftharpoons H^{+}(aq.)+A^{-}(aq.)

KA\rightleftharpoons K^+(aq.)+A^{-}(aq.)

According to Le-Chateliers principle, if there is any change in the variables of the reaction, the equilibrium will shift in the direction in order to minimize the effect.

In the equilibrium reactions, A^- ion is getting increased on the product side, so the equilibrium will shift in the direction to minimize this effect, which is in the direction of HA.

Thus, the addition of KA will shift the equilibrium in the left direction.

Equilibrium constant depends on the temperature of the system. It does not have any effect on any change of pH.

pH is defined as the negative logarithm of hydrogen ions present in the solution

  • If the solution has high hydrogen ion concentration, then the pH will be low.
  • If the solution has low hydrogen ion concentration, then the pH will be high.

As, the equilibrium is shifting in the left direction, that means concentration of H^+ ions are getting decreases. This will increase the pH of the solution.

Hence, the correct statement is if you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase.

8 0
3 years ago
What mass of salt is needed to prepare 600 mL of a 4g/L solution?
OLga [1]
THE ALTERNATIVE IS 4.8g alternative c
5 0
2 years ago
Pls help and show work!!!
kumpel [21]

Answer:

44.9g

Explanation:

You have to convert grams of CH4 to moles, use the mole-to-mole ratio of CH4 to water, and convert back to grams.

(20.0g CH4)(1 mol CH4/16.04g)(2 mol H2O/1 mol CH4)(18.01 g H2O/ 1 mol) = 44.9127 g

Hope this helps!

5 0
2 years ago
Read 2 more answers
How do you slow down the motion of a gas particle?
jasenka [17]
I think u turn down the heat not to sure
3 0
3 years ago
Read 2 more answers
Other questions:
  • 9-11 is best? for new york
    6·1 answer
  • Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici
    8·2 answers
  • What is the smallest chemical element?
    11·1 answer
  • Question
    6·1 answer
  • Is a forward or reverse reaction favored?
    7·1 answer
  • Determine the oxidation number of the element that is underlined within the compound. BaCrO4 (Cr is underlined)
    10·2 answers
  • The rate constant for a particular second-order reaction is 0.47 M-1s-1. If the initial concentration of reactant is 0.25 mol/L,
    6·1 answer
  • Is water an acid, base, or neutral?
    14·2 answers
  • A golfer hits a ball (m = 50. G) causing it to the leave its fairway lie with a velocity of 32 m/s. Determine the change in mome
    15·1 answer
  • How many protons will there be if the atom has 3 electrons and a mass of 7 amu
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!